Sprint dropped the price of its Nexus S 4G smartphone to $99.99 on Friday. The Google-branded smartphone originally made its debut on Sprint on May 8th for $199.99. The Nexus S 4G offers a “pure Google” experience and runs the latest Android 2.3 (Gingerbread) operating system. It also sports a 4-inch AMOLED display, a 1GHz Qualcomm Snapdragon processor, 16GB of internal memory and support for Sprint’s 4G WiMAX network. If you’re looking for a solid device that’s going to be constantly updated with the freshest OS builds from Google, the Nexus S 4G is a good bet — and its new $99.99 price point just makes it a bit sweeter.